30秒学会 JavaScript 片段 – listenOnce
Adds an event listener to an element that will only run the callback the first time the event is tri...
Adds an event listener to an element that will only run the callback the first time the event is tri...
Filter an array of objects based on a condition while also filtering out unspecified keys. Use Array...
Groups the elements of a list based on the given function and returns the count of elements in each ...
Changes the appearance of a form if any of its children are focused. The psuedo class :focus-within ...
Chains asynchronous functions. Loop through an array of functions containing asynchronous events, ca...
Invokes the provided callback on each animation frame. Use recursion. Provided that running is true,...
Returns a list of elements that exist in both lists, after applying the provided function to each li...
Takes any number of iterable objects or objects with a length property and returns the longest one. ...
Maps the values of an array to an object using a function, where the key-value pairs consist of the ...
Returns a Dictionary with the unique values of a collection as keys and their frequencies as the val...